Gas burner head with internal fuel heater and distributor



A 7, 1954 I. J. SHELTON 2,686,563

GAS BURNER HEAD WITH INTERNAL FUEL HEATER AND DISTRIBUTOR Filed Aug. 27, 1951 2 Sheets-Sheet 1.v

INVENTOR. IRA J. SHFLTOM BY ATTORNEY 7, 1954 l. J. SHELTON 2,686,563

GAS BURNER HEAD WITH INTERNAL FUEL HEATER AND DISTRIBUTOR Filed Aug. 27, 1951 2 Sheets-Sheet 2 3o 28 I a 27 1 T N g v 3a 22 o 6 J o 26 22 lg INVENTOR. 18.4 v. s/lsrroM A TTORNEY.

Patented Aug. 17, 1954 GAS BURNER HEAD WITH INTERNAL FUEL HEATER AND DISTRIBUTOR Ira J. Shelton, Detroit, Mich. Application August 27, 1951, Serial No. 243,819

Claims. 1

This invention relates to a novel gas burner construction, and more particularly to a novel gas burner including certain fuel and air mixing apparatus.

It is the object of the present invention to provide a new form of gas and air mixing apparatus in conjunction with a gas burner, which is highly efiicient for the intended purpose.

It is the object of the invention to provide an extremely simplified burner construction which is inexpensive to manufacture.

These and other objects will be seen from the following specification and claims in conjunction with the appended drawings.

Fig. 1 is a side elevational view of the present burner construction.

Fig. 2 is a left end elevational view thereof.

Fig. 3 is a longitudinal section of the burner construction shown in Fig. 1.

Fig. 4 is a section taken on line 4-4 of Fig. 3.

Fig. 5 is a section taken on line 5-5 of Fig. 3 and;

Fig. 6 is a fragmentary section taken on line 66 of Fig. 4.

It will be understood that the above drawings illustrate a preferred form of the invention, and that other embodiments are contemplated within the scope of the claims hereafter set forth.

Referring to the drawings, Figs. 1 and 2 show fragmentarily gas inlet pipe H through which is delivered gas from the jet It, also fragmentarily shown to thereby provide an increased velocity of flow. Hollow circular centrally apertured flange i2 is threaded upon the end of gas pipe H and said flange has a plurality of longitudinally extending radially arranged straps [3 by which said flange is joined in spaced relation to the shoulder it of the gas fitting it as by the screws I4.

As shown in the drawing, the straps l3 permit spacing of the flange l2 from shoulder l5 to thereby provide a substantially circular air inlet opening to said fitting with the air being drawn in by virtue of the velocity of the gas, which moves through the fitting I6.

Extension pipe I! is threadably joined at one end to fitting I6 and has threaded upon its other end the elbow l8. The burner housing base 19 has a hollow threaded depending extension 20, which is threadably joined at 2| to elbow I8 as shown in Fig. 3.

Base 9 is circular and has extending upwardly therefrom, and as a continuation of the extension 29, the hollow upright gas distributor pipe 22, which is closed at its upper end at 23.

The distributor 22 has a plurality of longitudinally spaced fuel mixture outlet openings 24, which are arranged radially of said pipe for delivering a fuel mixture to the interior of the hollow cover portion 29, which forms a part of the burner housing.

As shown in Fig, 4, three of the upright rows of outlets 24 are arranged at an angle with respect to the center of said pipe to thereby effect a rotating movement of the fuel mixture upon the interior of the housing I9-28.

It will be noted also that the fourth series of outlets 25, Figs. 4 and 6, are angularly directed downwardly to further promote and eifect a rotating condition of the fuel mixture within said housing.

The housing base I9 is circular in form and has a circular slot 26 therein adjacent the lower end of distributor pipe 22. The spring-like metallic coil 27 of heat conductive material, such as, an alloy steel, is positioned around distributor pipe 22 with its lower end positioned with the annular recess 26 and bearing against the interior bottom wall of the base It.

A second spring like coil of heat conducting material 28 is loosely positioned in spaced relation around coil 21 throughout its length, with the lower end of coil 23 positioned within the annular slot 25 in base it as shown in Fig. 3.

The hollow, cylindrically shaped enclosing cover portion 29 of the burner housing is positioned over and around coils 27 and 28, and distributor pipe 22 with its lower open end registering against the corresponding open annular edge of base it. The interior top surface of cover 2% bears against the top wall 23 of distributor 22, and is centrally secured thereto by the headed bolt 31? and its washer 3!.

It will be noted that the interior top surface of housing element 29 compressively bears against the upper ends of the coils 27 and 28, so that their respective adjacent loops in a particular coil are close to each other.

The coils are made of a heat conducting material, so that during the operation of the burner, they become sufficiently hot so as to super-heat the combustible fuel mixture of gas and air to improve its burning eniciency. Said heat coils are furthermore effective for vaporizing any moisture, which may be in the air or gas to further improve the burning efiiciency. Any water vapor in the fuel mixture will be immediately changed to a steam vapor to thereby improve the combustion efficiency of the burner.

A plurality of circularly arranged and spaced laterally directed fuel mixture outlets 32 are formed through the sidewalls of housing element 29 and are adapted to permit ignition of the fuel mixture upon the exterior of the burner housing element 29.

A plurality of spaced, radially arranged outwardly directed auxiliary air inlet openings 33 are formed within the housing base 19, as shown in Figs. 1, Z'and. 5, and may be used if desired for supplying additional combustion air. It is understood that openings 33 may be closed off or plugged, if desired.

As shown in Figs. 1 and 2, upright bracket arm 34 is suitably secured at its upper end to the housing base 19, whereas the lower bracket element 35 is suitably secured to the fitting Hi, to

more rigidly secure said housing thereto.

In the preferred construction, there is shown in Figs. 1 and 2, a circular support 35. Upwardly extending from said support is the upright standard- 31, which extends through a slotted portion in bracket element 35, and supportedly joined to the housing base I9 to thereby space a burner construction at theproper height.

A pilot support 38, which forms no part of the present invention, is secured to one side of the housing element 29, and carries the upright pilot tube which has a plurality of flame outlet openings 43 in the sidewalls thereof for igniting the fuel mixture when delivered out through housing outlets 32. Said pilot tube receives an auxiliary source of gas from the tube 4! joined thereto and which is fragmentarily shown. The pilot support 38 has automatic control mechanismd2, thereon, which includes a bimetal element G3, which is responsive to the heat of the pilot flame for maintaining an electrical circuit through the electric wires 44 in such a manner that should the pilot go out the bimetal will close breaking the electrical circuit in the automatic control mechanism to cut off further supply of gas or fuel to the gas jet 10 shown in Fig. 3.

The automatic pilot control mechanism forms no part of the present invention, and further detail is therefore omitted.

As shown in Fig. 3, a blower 45 is diagrammatically indicated, which may be used, if desired, for supplying compressed air, or air under high velocity through the pipe $5 to the interior of the gas supply pipe H.

By this construction, high pressure air may be introduced which will be constantly flowing through the housing |-29, and which will tend to prevent the burning combustible mixture from being exteriorly blown out.

The outlet openings 2d above described are arranged at an acute angle toa tangential line upon the exterior of the distributor at each outlet whereby the fuel mixture is rotated within the interior of the housing element 29 to thereby provide a rotating mixture for subsequent delivery through the burner outlets 32.

The combustible mixture is also delivered through the two coils 2i and 28, whereby the same is super-heated or pro-heated in view of the high heat conductivity of the material from which said coils are made.

Said coils also act as a steam generator for any moisture present in the combustion mixture.

It has been found that said coils when employed are non-oxidizing and clearly improve the burning efficiency of the preheated or super-heated combustible mixture.

Furthermore, the arrangement of the distributor outlets 24 are such as to produce a desirable pumping action in swirling and in rotating the combustible mixture upon the interior of burner housing I929 before delivery to outlets 32. This has a hydraulic cleaning action upon the interior of the burner.

Having described my invention, reference should now be had to the claims which follow for determining the scope thereof.

I claim:

1. A gas burner comprising a hollow upright cylindrical housing having a plurality of spaced circularly arranged horizontally directed fuel mixture outlets in the wall thereof, a hollow upright distributor pipe secured centrally within said housing and opening below said housing for communication with a fuel mixture supply, said distributor pipe having therein a plurality of vertical radially arranged rows of laterally directed outlet openings for fuel delivery to the interior of said housing, and a super heating vaporizing conductive spiral coil positioned around and engaging said distributor pipe throughout its length.

2. A gas burner comprising a hollow upright cylindrical housing having a plurality of spaced circularly arranged horizontally directed. fuel mixture outlets in the wall thereof, a hollow upright distributor pipe secured centrally Within said housing and opening below said housing for communication with a fuel mixture supply, said distributor pipe having therein a plurality of vertical radiall arranged rows of laterally directed outlet openings for fuel delivery to the interior of said housing, and a super heating vaporizing conductive spiral coil positioned around said distributor pipe throughout its length, said distributor outlet openings being arranged at an acute angle to tangential lines on the outer surface of said pipe at said openings, whereby the fuel mixture is constantly whirled upon the interior of said housing.

3. A gas burner comprising a hollow upright cylindrical housing having a plurality of spaced circularly arranged horizontally directed fuel mixture outlets in the wall thereof, a hollow upright distributor pipe secured centrally within said housing and opening below said housing for communication with a fuel mixture supply, said distributor pipe having therein a plurality of vertical radially arranged rows of laterally directed outlet openings for fuel delivery to the interior of said housing, and a super heating vaporizing conductive spiral coil positioned around said distributor pipe throughout its length, said distributor outlet openings in a plurality of said rows being arranged at an acute angle to tangential lines on the outer surface of said pipe at said openings, whereby the fuel mixture is constantly whirled upon the interior of said housing, and said distributor outlet openings in at least one of said rows being angularly directed downwardly to augment the rotating swirling action of said fuel mixture.

l. A gas burner comprising a hollow upright cylindrical housing having a plurality of spaced circularly arranged horizontally directed fuel mixture outlets in the wall thereof, a hollow upright distributor pipe secured centrally within said housing and opening below said housing for communication with a fuel mixture supply, said distributor pipe having therein a plurality of vertical radially arranged rows of laterally directed. outlet openings for fuel delivery to the interior of said housing, a super heating vaporizing conductive spiral coil positioned around and engaging said distributor pipe throughout its length, and a second super heating and vaporizing heat conductive spiral coil loosely positioned around said. first coil throughout its length and in spaced relation thereto.

5. A gas burner comprising a hollow upright cylindrical housing having a plurality of spaced circularly arranged horizontally directed fuel mixture outlets in the Wall thereof, a hollow upright distributor pipe secured centrally within said housing and opening below said housing for communication with a fuel mixture supply, said distributor pipe having therein a plurality of vertical radially arranged rows of laterally directed outlet openings for fuel delivery to the interior of said housing, and a super heating vaporizing conductive spiral coil positioned around and engaging said distributor pipe throughout its length, said housing including a hollow circular base which is so formed that the distributor pipe is closed at its upper end and forms an integral part of said base, and a hollow circular cover which registers with said base and encloses said pipe and is secured to said pipe at its upper end, said distributor outlet openings being arranged at an acute angle to tangential lines on the outer surface of said pipe openings, whereby the fuel mixture is constantly whirled upon the interior of said housing.

References Cited in the file of this patent UNITED STATES PATENTS Number Name Date 418,846 Keyser Jan. '7, 1890 2,018,582 Theunissen Oct. 22, 1935' FOREIGN PATENTS Number Country Date 242,368 Germany Jan. 5, 1912 

